def __contains__(cls, member):
if not isinstance(member, Enum):
from code.图片资料.env.Lib import warnings
warnings.warn(
"using non-Enums in containment checks will raise "
"TypeError in Python 3.8",
DeprecationWarning, 2)
return isinstance(member, cls) and member._name_ in cls._member_map_
def __contains__(self, other):
if not isinstance(other, self.__class__):
from code.图片资料.env.Lib import warnings
warnings.warn(
"using non-Flags in containment checks will raise "
"TypeError in Python 3.8",
DeprecationWarning, 2)
return False
return other._value_ & self._value_ == other._value_
def _cleanup(cls, name, warn_message):
_shutil.rmtree(name)
_warnings.warn(warn_message, ResourceWarning)
try:
from _imp import create_dynamic
except ImportError:
# Platform doesn't support dynamic loading.
create_dynamic = None
from code.图片资料.env.Lib.importlib import _ERR_MSG, _exec, _load, _builtin_from_name
from code.图片资料.env.Lib.importlib import SourcelessFileLoader
from code.图片资料.env.Lib.importlib import machinery
from code.图片资料.env.Lib.importlib import util
import sys
from code.图片资料.env.Lib import types, tokenize, warnings, os, importlib
warnings.warn("the imp module is deprecated in favour of importlib; "
"see the module's documentation for alternative uses",
DeprecationWarning, stacklevel=2)
# DEPRECATED
SEARCH_ERROR = 0
PY_SOURCE = 1
PY_COMPILED = 2
C_EXTENSION = 3
PY_RESOURCE = 4
PKG_DIRECTORY = 5
C_BUILTIN = 6
PY_FROZEN = 7
PY_CODERESOURCE = 8
IMP_HOOK = 9
def __init__(self, key, msg=None, digestmod=None):
"""Create a new HMAC object.
key: key for the keyed hash object.
msg: Initial input for the hash, if provided.
digestmod: A module supporting PEP 247. *OR*
A hashlib constructor returning a new hash object. *OR*
A hash name suitable for hashlib.new().
Defaults to hashlib.md5.
Implicit default to hashlib.md5 is deprecated since Python
3.4 and will be removed in Python 3.8.
Note: key and msg must be a bytes or bytearray objects.
"""
if not isinstance(key, (bytes, bytearray)):
raise TypeError("key: expected bytes or bytearray, but got %r" %
type(key).__name__)
if digestmod is None:
_warnings.warn(
"HMAC() without an explicit digestmod argument "
"is deprecated since Python 3.4, and will be removed "
"in 3.8", DeprecationWarning, 2)
digestmod = _hashlib.md5
if callable(digestmod):
self.digest_cons = digestmod
elif isinstance(digestmod, str):
self.digest_cons = lambda d=b'': _hashlib.new(digestmod, d)
else:
self.digest_cons = lambda d=b'': digestmod.new(d)
self.outer = self.digest_cons()
self.inner = self.digest_cons()
self.digest_size = self.inner.digest_size
if hasattr(self.inner, 'block_size'):
blocksize = self.inner.block_size
if blocksize < 16:
_warnings.warn(
'block_size of %d seems too small; using our '
'default of %d.' % (blocksize, self.blocksize),
RuntimeWarning, 2)
blocksize = self.blocksize
else:
_warnings.warn(
'No block_size attribute on given digest object; '
'Assuming %d.' % (self.blocksize), RuntimeWarning, 2)
blocksize = self.blocksize
# self.blocksize is the default blocksize. self.block_size is
# effective block size as well as the public API attribute.
self.block_size = blocksize
if len(key) > blocksize:
key = self.digest_cons(key).digest()
key = key.ljust(blocksize, b'\0')
self.outer.update(key.translate(trans_5C))
self.inner.update(key.translate(trans_36))
if msg is not None:
self.update(msg)
def decodestring(s):
"""Legacy alias of decodebytes()."""
warnings.warn(
"decodestring() is a deprecated alias since Python 3.1, "
"use decodebytes()", DeprecationWarning, 2)
return decodebytes(s)
def encodestring(s):
"""Legacy alias of encodebytes()."""
warnings.warn(
"encodestring() is a deprecated alias since 3.1, "
"use encodebytes()", DeprecationWarning, 2)
return encodebytes(s)
def _parse(source, state, verbose, nested, first=False):
# parse a simple pattern
subpattern = SubPattern(state)
# precompute constants into local variables
subpatternappend = subpattern.append
sourceget = source.get
sourcematch = source.match
_len = len
_ord = ord
while True:
this = source.next
if this is None:
break # end of pattern
if this in "|)":
break # end of subpattern
sourceget()
if verbose:
# skip whitespace and comments
if this in WHITESPACE:
continue
if this == "#":
while True:
this = sourceget()
if this is None or this == "\n":
break
continue
if this[0] == "\\":
code = _escape(source, this, state)
subpatternappend(code)
elif this not in SPECIAL_CHARS:
subpatternappend((LITERAL, _ord(this)))
elif this == "[":
here = source.tell() - 1
# character set
set = []
setappend = set.append
## if sourcematch(":"):
## pass # handle character classes
if source.next == '[':
from code.图片资料.env.Lib import warnings
warnings.warn('Possible nested set at position %d' %
source.tell(),
FutureWarning,
stacklevel=nested + 6)
negate = sourcematch("^")
# check remaining characters
while True:
this = sourceget()
if this is None:
raise source.error("unterminated character set",
source.tell() - here)
if this == "]" and set:
break
elif this[0] == "\\":
code1 = _class_escape(source, this)
else:
if set and this in '-&~|' and source.next == this:
from code.图片资料.env.Lib import warnings
warnings.warn(
'Possible set %s at position %d' %
('difference' if this == '-' else 'intersection'
if this == '&' else 'symmetric difference'
if this == '~' else 'union', source.tell() - 1),
FutureWarning,
stacklevel=nested + 6)
code1 = LITERAL, _ord(this)
if sourcematch("-"):
# potential range
that = sourceget()
if that is None:
raise source.error("unterminated character set",
source.tell() - here)
if that == "]":
if code1[0] is IN:
code1 = code1[1][0]
setappend(code1)
setappend((LITERAL, _ord("-")))
break
if that[0] == "\\":
code2 = _class_escape(source, that)
else:
if that == '-':
from code.图片资料.env.Lib import warnings
warnings.warn(
'Possible set difference at position %d' %
(source.tell() - 2),
FutureWarning,
stacklevel=nested + 6)
code2 = LITERAL, _ord(that)
if code1[0] != LITERAL or code2[0] != LITERAL:
msg = "bad character range %s-%s" % (this, that)
raise source.error(msg, len(this) + 1 + len(that))
lo = code1[1]
hi = code2[1]
if hi < lo:
msg = "bad character range %s-%s" % (this, that)
raise source.error(msg, len(this) + 1 + len(that))
setappend((RANGE, (lo, hi)))
else:
if code1[0] is IN:
code1 = code1[1][0]
setappend(code1)
set = _uniq(set)
# XXX: <fl> should move set optimization to compiler!
if _len(set) == 1 and set[0][0] is LITERAL:
# optimization
if negate:
subpatternappend((NOT_LITERAL, set[0][1]))
else:
subpatternappend(set[0])
else:
if negate:
set.insert(0, (NEGATE, None))
# charmap optimization can't be added here because
# global flags still are not known
subpatternappend((IN, set))
elif this in REPEAT_CHARS:
# repeat previous item
here = source.tell()
if this == "?":
min, max = 0, 1
elif this == "*":
min, max = 0, MAXREPEAT
elif this == "+":
min, max = 1, MAXREPEAT
elif this == "{":
if source.next == "}":
subpatternappend((LITERAL, _ord(this)))
continue
min, max = 0, MAXREPEAT
lo = hi = ""
while source.next in DIGITS:
lo += sourceget()
if sourcematch(","):
while source.next in DIGITS:
hi += sourceget()
else:
hi = lo
if not sourcematch("}"):
subpatternappend((LITERAL, _ord(this)))
source.seek(here)
continue
if lo:
min = int(lo)
if min >= MAXREPEAT:
raise OverflowError(
"the repetition number is too large")
if hi:
max = int(hi)
if max >= MAXREPEAT:
raise OverflowError(
"the repetition number is too large")
if max < min:
raise source.error(
"min repeat greater than max repeat",
source.tell() - here)
else:
raise AssertionError("unsupported quantifier %r" % (char, ))
# figure out which item to repeat
if subpattern:
item = subpattern[-1:]
else:
item = None
if not item or item[0][0] is AT:
raise source.error("nothing to repeat",
source.tell() - here + len(this))
if item[0][0] in _REPEATCODES:
raise source.error("multiple repeat",
source.tell() - here + len(this))
if item[0][0] is SUBPATTERN:
group, add_flags, del_flags, p = item[0][1]
if group is None and not add_flags and not del_flags:
item = p
if sourcematch("?"):
subpattern[-1] = (MIN_REPEAT, (min, max, item))
else:
subpattern[-1] = (MAX_REPEAT, (min, max, item))
elif this == ".":
subpatternappend((ANY, None))
elif this == "(":
start = source.tell() - 1
group = True
name = None
add_flags = 0
del_flags = 0
if sourcematch("?"):
# options
char = sourceget()
if char is None:
raise source.error("unexpected end of pattern")
if char == "P":
# python extensions
if sourcematch("<"):
# named group: skip forward to end of name
name = source.getuntil(">")
if not name.isidentifier():
msg = "bad character in group name %r" % name
raise source.error(msg, len(name) + 1)
elif sourcematch("="):
# named backreference
name = source.getuntil(")")
if not name.isidentifier():
msg = "bad character in group name %r" % name
raise source.error(msg, len(name) + 1)
gid = state.groupdict.get(name)
if gid is None:
msg = "unknown group name %r" % name
raise source.error(msg, len(name) + 1)
if not state.checkgroup(gid):
raise source.error("cannot refer to an open group",
len(name) + 1)
state.checklookbehindgroup(gid, source)
subpatternappend((GROUPREF, gid))
continue
else:
char = sourceget()
if char is None:
raise source.error("unexpected end of pattern")
raise source.error("unknown extension ?P" + char,
len(char) + 2)
elif char == ":":
# non-capturing group
group = None
elif char == "#":
# comment
while True:
if source.next is None:
raise source.error(
"missing ), unterminated comment",
source.tell() - start)
if sourceget() == ")":
break
continue
elif char in "=!<":
# lookahead assertions
dir = 1
if char == "<":
char = sourceget()
if char is None:
raise source.error("unexpected end of pattern")
if char not in "=!":
raise source.error("unknown extension ?<" + char,
len(char) + 2)
dir = -1 # lookbehind
lookbehindgroups = state.lookbehindgroups
if lookbehindgroups is None:
state.lookbehindgroups = state.groups
p = _parse_sub(source, state, verbose, nested + 1)
if dir < 0:
if lookbehindgroups is None:
state.lookbehindgroups = None
if not sourcematch(")"):
raise source.error(
"missing ), unterminated subpattern",
source.tell() - start)
if char == "=":
subpatternappend((ASSERT, (dir, p)))
else:
subpatternappend((ASSERT_NOT, (dir, p)))
continue
elif char == "(":
# conditional backreference group
condname = source.getuntil(")")
if condname.isidentifier():
condgroup = state.groupdict.get(condname)
if condgroup is None:
msg = "unknown group name %r" % condname
raise source.error(msg, len(condname) + 1)
else:
try:
condgroup = int(condname)
if condgroup < 0:
raise ValueError
except ValueError:
msg = "bad character in group name %r" % condname
raise source.error(msg,
len(condname) + 1) from None
if not condgroup:
raise source.error("bad group number",
len(condname) + 1)
if condgroup >= MAXGROUPS:
msg = "invalid group reference %d" % condgroup
raise source.error(msg, len(condname) + 1)
state.checklookbehindgroup(condgroup, source)
item_yes = _parse(source, state, verbose, nested + 1)
if source.match("|"):
item_no = _parse(source, state, verbose, nested + 1)
if source.next == "|":
raise source.error(
"conditional backref with more than two branches"
)
else:
item_no = None
if not source.match(")"):
raise source.error(
"missing ), unterminated subpattern",
source.tell() - start)
subpatternappend(
(GROUPREF_EXISTS, (condgroup, item_yes, item_no)))
continue
elif char in FLAGS or char == "-":
# flags
flags = _parse_flags(source, state, char)
if flags is None: # global flags
if not first or subpattern:
from code.图片资料.env.Lib import warnings
warnings.warn(
'Flags not at the start of the expression %r%s'
% (
source.
string[:20], # truncate long regexes
' (truncated)'
if len(source.string) > 20 else '',
),
DeprecationWarning,
stacklevel=nested + 6)
if (state.flags & SRE_FLAG_VERBOSE) and not verbose:
raise Verbose
continue
add_flags, del_flags = flags
group = None
else:
raise source.error("unknown extension ?" + char,
len(char) + 1)
# parse group contents
if group is not None:
try:
group = state.opengroup(name)
except error as err:
raise source.error(err.msg, len(name) + 1) from None
sub_verbose = ((verbose or (add_flags & SRE_FLAG_VERBOSE))
and not (del_flags & SRE_FLAG_VERBOSE))
p = _parse_sub(source, state, sub_verbose, nested + 1)
if not source.match(")"):
raise source.error("missing ), unterminated subpattern",
source.tell() - start)
if group is not None:
state.closegroup(group, p)
subpatternappend((SUBPATTERN, (group, add_flags, del_flags, p)))
elif this == "^":
subpatternappend((AT, AT_BEGINNING))
elif this == "$":
subpatternappend((AT, AT_END))
else:
raise AssertionError("unsupported special character %r" % (char, ))
# unpack non-capturing groups
for i in range(len(subpattern))[::-1]:
op, av = subpattern[i]
if op is SUBPATTERN:
group, add_flags, del_flags, p = av
if group is None and not add_flags and not del_flags:
subpattern[i:i + 1] = p
return subpattern